摘要
文章运用混沌和奇异值分解理论,提出了基于二维混沌矩阵图像置乱方法,设计并实现了基于奇异值分解的双层水印算法,并对算法进行了实验与分析。实验结果与分析表明,该方法鲁棒性强、安全性好、易于实现,可应用于不同密级信息同时传播,具有一定的实用价值。
In this paper,according to the theory of chaos and SVD,the picture scrambling algorithm based on two-dimension chaos matrix is proposed and double-level watermarking algorithm based on singular value decomposition(SVD)is also devised and implemented.Experiments and analysis show that this algorithm is easy to implement.It has the characteristics of robustness and security.Thus it can be applied in broadcasting multi-rank secret information simultaneously.
出处
《计算机工程与应用》
CSCD
北大核心
2005年第1期70-72,共3页
Computer Engineering and Applications
关键词
双层水印
奇异值分解
二维混沌
置乱
鲁棒性
安全性
double-level watermark,SVD,two-dimension Chaos,scramble,robustness,security
